Alas, both Dutch (where I live) and UK sites have no mention of it and Anna, the AI customer assistant wasn’t any help either. But thanks for the quick response.
Maybe they kept being brought back because the one hand was going round too slow so they dropped it from their collection.

HI Stacy – I don’t think you’re supposed to… 🙂 There are quite a few one-handed clocks and watches around, and the idea of a lot of them is I think more in the way of a fashion statement or philosophical talking point (or even a joke) than a properly accurate timepiece. (e.g. see Klaus Botta’s watch). Like all things clock-related, it’s possible to develop skills over time, so I bet you could become more accurate with experience.